47 lines
1.8 KiB
Markdown
47 lines
1.8 KiB
Markdown
Title: Searching and replacing in emacs
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Day two of my serie about emacs, about searching and replacing.
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- Function name: *isearch-forward*
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- Typical Key binding: `C-s`
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- How to get help: `C-h f isearch-forward`
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*isearch-forward* let you type a string to be searched incrementally
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in the current buffer, successive following `C-s` will jump to the next
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match.
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- Function name: *isearch-forward-regexp*
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- Typical Key sequence: `C-M-s` or `C-u C-s`
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- How to get help : `C-h f isearch-forward-regexp`
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*isearch-forward-regexp* let you type a regexp to be searched
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incrementally in the current buffer, successive following `C-s` will
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jump to the next match.
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- Function name: *query-replace*
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- Typical key binding: `M-%`
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- How to get help: `C-h f query-replace`
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- Usage: `M-%` *search* `RET` *replace* `RET`
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Then, for each term found, *query-replace* will ask you what to do:
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`space` or `y` to replace, `delete` or `n` to skip, `RET` or `q` to
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exit, `!` for "yes for all", `?` to get help about how to enter
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recursive edit / delete match and recursive edit / edit replacement
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string / ... Then you should read about *replace-string*,
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*replace-regexp*, *occur*, *list-matching-lines*, *multi-occur*,
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*multi-occur-in-matching-buffers*, *how-many*, *flush-lines*, and
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*keep-lines*.
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Case sensitivity: A search is by defaut case
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insensitive, but if you input an upper case letter, it become case
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sensitive. `M-c` during a search toggle the case
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sensitivity. Configuration variables: You may consult the
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documentation about those variable typing : `C-h v *variable*` or `M-x
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apropos-variable RET case-fold-search RET`
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- *case-fold-search* (Non-nil if searches and matches should
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ignore case.)
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- *default-case-fold-search* (Default value of \`case-fold-search')
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- *tags-case-fold-search* (Whether tags operations should
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be case-sensitive.)
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